Finding the Fourth Proportional to 200,609.60, 276,870.72 and 115,710.08

Step by Step Solution

1. Step 1: Write the proportion equation
   200,609.60 : 276,870.72 = 115,710.08 : x
2. Step 2: Convert to fraction form
   200,609.60/276,870.72 = 115,710.08/x
3. Step 3: Cross multiply
   200,609.60x = 276,870.72 × 115,710.08
4. Step 4: Simplify right side
   200,609.60x = 32,036,733,160.86
5. Step 5: Solve for x
   x = 32,036,733,160.86/200,609.60
6. Step 6: Final answer
   x = 159,696.91